Automatic shingle shake forming machine



Nov. 13, 1951 B. DENNISON AUTOMAT IC SHINGLE SHAKE FORMING MACHINE Filed/Sept. 24, 1948 5 Sheets-Sheet 1 Fig. as

I24 Lee B. Benn/sari JNVENTOR.

1 l I IIIH "mill!" L. B. DENNISON M 4 a v 2 M m m m n V am 1 |H H W m m v m a 1:2 1% M w o m m e w J r m a w m m m AUTOMATIC SHINGLE SHAKE FORMING MACHINE Nov. 13, 1951 Filed Sept. 24, 1948 rim-ED PATENT: x

, 2,574,912 I A AUTOMATIC SHINGLE SHAKE FORMING MACHINE Lee B. Dennison, Fernwood, Idaho 7 Application seminar 24, 1948, Serial No. 50,953

This invention relates to an automatic machine for treating the surface of or grooving shingles to produce what is commonly referred to as shake shingles. l

A primary object of this invention is to automatically feed conventional wedge-shaped shingles to a cutter, whereby the surface of theshingles will be grooved or provided with longitudinally disposed corrugations to produce shake shingles. l v

Another importantobject of this invention is to provide a guide plate for a shingle, the guide plate being hinged to the frame and tiltable downwardly and upwardly relative to the rotary cutter, adjustment of the cutter being responsive to means engaged by and actuated by the shingle moving over the surface of the plate.

And yet another important object of thisinvention is to provide a shingle planing machine which is compact and simply and practically constructed and which will groove tapered shingles at a uniform depth throughout their length, the machine functioning automatically after a shingle has. been placed thereon to feed: the shin;- gle in engagement with the cutter head and thus form grooves thereinand to discharge the planed shaped shingles. V i

A meritorious feature of-this, invention resides in the provision of a frame, having an automatically operated and controlled feeding device for feeding a shingle into and throughrthe machine, a cutter head having a plurality of scalloped knives radially extending therefrom for grooving the lower surface of the shingle as it is fed over the cutter head, and a rcontroldevice which is operated by the movement of the shingle and which functions to lower thesurface of the shingle into engagement with the scalloped knives.-

These and ancillary objects and other meritorious features are attained by thisinvention, a preferred embodiment of which is set forth in the following description and illustrated in the accompanying drawings, wherein;

Figure l is a side 'elevational view of a-machine constructed in accordance with the principles of the instant invention; a I

' Figure 2 is a fragmentary vertical sectional view of the feeding, cutting and mechanical table trip construction;

Figure 3 is a top plan view of this invention;

Figure 4 is a top planview, with the automatically operated table feeder and mechanical table trip removed, to illustrate the cutter head and blade structure; f

Figure 5 is a side 'elevational view of the instant invention;

5 Claims. (01. 144 ia) Figure 6 is asectional View taken on-theline 6-6 ofF'igure 1; and; Figure 7 is a view in perspective of the grooved shake shinglewhich is formed by the machine illustrated in the foregoing views. r Y Referring now more particularly tothe draw ings, this invention comprises aframe consisting of opposed parallel base members l2, from which extend upwardly at opposite ends thereof a pair of opposed standards or posts l4 and a similar pair I6. The opposed upraised standards [6 extend upwardly beyond the terminating point of the standards or posts, l;4 and have, secured thereto opposed side members); and 20 which extend longitudinallytherefrom and are disposed at their opposite ends on the upper ends of the opposed standards l4. Transverse bars or end members 22 and 24 are disposed-between the opposed ends of the side members l8 and 20; A top or shelf 26 is secured at one end tothe toner upper end of the transverse bar 24 and projects forwardly therefrom relative to the transverse bar 22. The shelf 26 terminates in-a downwardly beveled free or unattached end, disposed adjacent to but spaced inwardly from the end Ioar2 2. A pairof transversely spaced openings or slots 28 are provided in the shelf,-adjacent the free end 30 thereof, for a purpose to be later described. The upper surface of ,the shelfor-top- 26 serves as. a discharge point for the finished orplanedshingle, as will become later apparent.; I 1 1 -A conventional electric motor 32 is bolted as at 34 to a supporting base or shelf, 36, the latter being transversely disposed on the opposed base members I2. Of course, the motoris provided with a conventional armature or driving shaft 42, the same extending outwardly beyond the frame and having adjacent pulleys 38 and 40 keyed thereon. v

A shaft 44 is transversely disposedbetween the opposed frame standards l6 and rotatably mounted on the outer edges thereof by means of a pair of bearing brackets or collars 46 and 48, the latter being bolted as at 50to the post stan dards or less. A pulley wheel 52 is fixed on one end of the shaft 44 and is connected with the driving shaft 42 of the m otor through abelt 54 connected to the pulley 38. A pair of opposed longitudinally extending angle irons 56 and 58 are provided at one end with bearingsleeves, 68, the same being disposed on the shaft 44, the shaft 44 thus servingas a pivot point for the opposed angle members. which are connectedby transverse slats or members 62 and 64. A feeding roller 66, having a roughened outer surface for 'abrading' or rougheningon'e'side' er "a' shingle and for feeding the shingle through the machine is journaled to the free or unattached end of the angle irons 56 and 58, as seen in Figures 1 and 3. The feeding roller 66 is, of course, provided at its opposite ends with extending spindles 68 and 10, the spindle I6 being journaled in a journal box I2 mounted to the under surface of the angleironjfi, the spindlesonshaftttc being disposed'througha similar journal'box I4 bolted as at I6 to the underside of the extended end'of the angle iron 56. A pulley I8 is keyed or other:

wise afiixed to the extending end of the shaft 68 and is connected to a smaller pulleytllfsecured on the extending end of the shaft 44 by means" of a belt 82.

Means is provided for automatically and ad justably maintaining the rotaryxfeediroller. 662m engagement with the unattached end of, the top. 26, in front of the transyerse slots or openings 28. The means preferred comprises a lever 84 terminating in ahook at; 86; the =la-teral extension or hook end 86 being disposedin' a-slot 88-formed in the angle iron 56-,=as'seen-in*Figure 1: The oppcsite end of the 1 lever is pivoted" as at 96 to anarm 92 which is-pivoted as at 94=to one'ofthe opposed base members I I 2. The arm 92 extends beyond the frame and a weight 96=is slidably and detachably associated therewith. Thus; weight onthe extending end 1 of the arm 92* holds the same 'downand exerts a pressure on thehook extension 86, which engages the angle iron 66- and holds the--same-'--in -aslanted position; The posi= tioning' of Y the angle iron 56 andtheangle iron 58 maintainsthe feeda roller 66 engagement witlrathe top- '26, for-apurpose-=-to be later described.

A cylindricalcutter head or roller-98= is rotatably journaled in-journal boxes I66 and I62, the journal boxesbeing disposed-on the opposed longitudinal side members- 20--'-of--the frame, adj acent the end 36" of "the top-26 and invertical alignment with theextendingends of the-angle irons 56 and 58. A-pulleyIM is-disposed on the extending shaft end ofthe cutter=head and connected with the pulley lfl bymeansof a connecting belt I065 so that the cutter headis-rotated through the-operation of the motor -32; correspondingly the motor actuating the feeding roller 66;- A plurality of knives- I !I8- are transversely disposed in --the--cutter"-headand ang-ular 1y extend therefrom in*spacedfashion; as seen in Figure l. The knives-are grooved-on-their beveled sides and straight-ground =on=the face, so that the knives represent conventional scalloped knives; as '-is best illustrated in Figures Band 4;

Means is-provided 'foradr'nittinga shingle -"--into engagement withthe feed roller 66 and l in conjunction-therewith for loweringthe undersurface of the shingle into engagement with the-cutter head 98 and the knivescarried therebya In this respect, a rod" IIO' istransversely"journaled be tweenthe upper-edges of the'opposed sidemem bers'20, the rod having its extremities rotatably journaledin bearing plates I I2 wh-ichare-bolted as atII I to the top edgeof the respective-side members. A' plate-orbed element-,- I I6 is secured on the rod between the bearing' plates-4 I21and is provided with opposed angular side flanges or walls I wand-I203 The plate II6 is'dispos'ed on the rod off-center, so that themajor portion of the plate isdisposed rearwardly-"of therodf as seenin Figured: An angle-iron I22-is secured to the transverse bar 22 and a'bolt I 2.4 is disposed in the horizontal section of "the angle iron" with 'a locking 'nut I 26 being provided. The belt I 24 is vertically adjustable and defines a stop for the rearward or major portion of the plate, as seen in Figure 1.

The plate is adapted to guide a shingle I28, having a tip end I30 and a butt end I32 into engagement by the cutter head and the knives carried thereby. In this respect, the tip end is first insertedon the plate andimoved manually relative" to therfeed roller '66, ,which grips gthe upper surface of the shingle and roughens or abrades the surface. The feed roller also moves the shingle inwardly and means is provided for tilting thei plate=to'azhorizontal position, so that the under surface of the shingle is disposed in the the shingle as thesame is moved inwardly of the framebythe feed roller. In this respect, a trans.- ver'se rod" or shaft I34 is journaled in the side members I8, 20 beneath the top or shelf 26 in vertical a'lignmentwith the=-s1ots ZB in the top 26. A-pair-ofspring bars- I36 and I 36 are coiled at one endaround the shaft IM and' have their opposite ends extended upwardly through therespectiveslots-28 and terminating abovethe -plane of the-top 26'=and rearwardlyof the feed roller 66% A rod I40 is journaled transverselyin the side-members I8-, 20; having one end I42-extendingbeyond one of said men ibers, as seen in Figure 6. A rigid bar or actuating finger IM is disposed on the rod I All and extends upwardly and outwardly therefrom; The upper end of 1 the actua-tingfinger I44- is-suitably apertured" toreceiveanoperating rod H56- sl-idably disposed therein. 4 The operatingrod I 46 is similarly disposed' thr'ouglr a bar I 48 which extends upward ly from a collar 'I5II -secured on-the -rod I34; as seen 'in'Figu-re 4; Of course; complementary stop plates-or adjustingnuts- I52-"are disposed onthe rod I46 tolock-the bard 48 in: the desired'adjusted position thereon, witha'similar 'pairof complementary locking' stop plates1I54 provided for-engagement-of' the actuating-finger. I44. A wedge I66 is formed integrally on the under surface of the plate I I6 and I disposed l in engagement. with the end ofi the actuating finger. M4,. A spring I62 terminating in hook ends I64 and- I66 Iis adi'sposed between =theactuating finger I44 and the end member 22: of the-frame. In this respect, a ring- IBBEis fOrmed on-the bar ld l-toibe enga'ged' by I the: hooks terminal I66 of the spring, while a ring IIO is adjustably inserted through the: end member 22* to be engaged by the hook end I64-of the'spring; The hook-l'i6 isprovided with an'elongated externallythreaded shank 'I I 2 which projectsthrough v and beyond: i the frame member 22' and is'adapted "to receive a -wing nut I149 A-collar-I'IB is formedon the extending end of the-rod-l34 and is-provided with a-flexible bar or spring ba-r- I78 havin'g its opposite end disposed onthe extending-end 1420f the rod I40.-

The operation'of-this'idevice is believed very simple and-is asfollows":

Ash'irigIe I 28 previously formed in anyconventional or desired' manner andisso formed with a "butt endl32 and'a tip I36. The shingle is laidwn-the'plate orguide bed element II6 and the tip is moved into engagement'by the feed roller'66f As'tli'e feed roller is rotated through themotor 32 and thebelttransmission system, theshingle'isimovedt'inwardly until the tip moves againstand engages the extendingends of the spring bars I36 and I38. As the tip abuts against the ends'pf'the springbars, the spring bars are moved rearwardly causing the bar I48 to move rearwardly and moving the connecting rod I 40 accordingly. As the connecting rod I46 moves, the actuating finger I 44 is correspondingly moved onto the beveled surface of the wedge block I60 until the tip or end of the actuating finger is completely moved off of the wedge block I60. At this time, with reference to Figure 2, it will be seen that the guide bed element will be disposed in a horizontal position and the under surface of the shingle will be disposed in the cutting area of the cutting head. As the cutter head rotates and the shingle is moved inwardly on the top or shelf 26 by the feed roller, the scalloped knives are brought into engagement with the under surface and form longitudinal grooves or corrugations in the under surface, as seen in Figure 7. Thus, a weather side is imparted to the shingle in a convenient and efiicient manner. After the butt end of the shingle is moved past the cutting area, the spring bars are urged to their normal position in the slots 28 by the spring I62. However, the movement forwardly of the spring bars is limited by engagement of the spring I78 on the end I42 of the rod I40. Accordingly, the machine is now ready for successive planing operations.

It is to be especially apparent that the shingle is maifitained between the top 26 and the feed roller 66 by exerting a downward pressure on the roller 66 through the medium of the lever 84 and the weighted arm 92. Of course, the position of the spring bars can be easily adjusted by adjusting the tension on the spring I62 by means of threaded shank I12 and wing nut I74.

Thus it can be seen that there is provided a compact machine, which can be easily set up at the building site and can be efficiently and conveniently operated to produce a large number of shake shingles in a short period of time, and with but a slight expenditure of labor being required.

However, since many other modifications and purposes of this invention will become readily apparent to those skilled in the art upon a perusal of the foregoing description, it is to be understood that certain changes in style, size and components may be effected without a departure from the spirit of the invention and Within the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A shingle grooving machine comprising a frame, a power driven rotary grooving cutter journaled in said frame transversely thereof, a guide plate at one side of the cutter for supporting a shingle to be manually fed thereon initially over said cutter and pivotally mounted on said frame for tilting upwardly away from said outter and being tiltable downwardly toward said cutter under the weight of a shingle fed thereover to lower said shingle into engagement wit said cutter, power driven shingle feed means on said frame on the other side of said cutter to which the shingle is manually fed initially for subsequent power feed of the shingle over the cutter, releasable means normally holding said plate tilted upwardly, and means operative by the shingle as it is fed by said feeding means to release said releasable means so that said plate may tilt downwardly.

2. A shingle grooving machine according to claim 1 wherein said plate is overbalanced to normally swing upwardly as soon as the shingle is fed ofi the same.

3. A shingle grooving machine according to claim 1 wherein said last named means comprises a rock shaft journaled transversely in said frame, a pair of swingable shaft rocking fingers upstanding from said shaft at said other side of the cutter and projecting into the path of feed of the shingle being fed by said feeding means for engagement by said shingle to swing the fingers, and operating connections between one of said fingers and said releasing means.

4. A shingle grooving machine according to claim 1 wherein said releasable means comprises a member on the bottom of said plate, and an upstanding finger pivoted on said frame and supporting said member and swingable out of supporting relation to said member.

5. A shingle grooving machine according to claim 1 wherein said shingle feeding means comprises a feed roller above said frame for pressure engagement with the shingle, a pair of arms carrying the roller between corresponding ends thereof and pivotally mounted on said frame for downward swinging to engage said roller with the shingle, and means to exert downward pressure against at least one of said arms comprising a hooked lever engaging one of said arms, a pivoted arm on said frame to which said lever is pivoted, and acounterweight on said last named arm.

LEE B. DENNISON.

REFERENCES CITED The following references are of record in the file of this patent: 

